XingZhenyuChemistryReducingCO2DenseNanoporous_SupplementaryMaterial.pdf

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/jw827d70t

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Attribute Name	Values
Creator	Xing, Zhenyu Wang, Bao Gao, Wenyang Pan, Changqing Halsted, Joshua K. Chong, Elliot S. Lu, Jun Wang, Xingfeng Luo, Wei Chang, Chih-Hung Wen, Youhai Ma, Shengqian Amine, Khalil Ji, Xiulei
Abstract	Converting CO2 to valuable materials is attractive.Herein, we report using simple metallothermic reactions to reduce atmospheric CO2 to dense nanoporous graphene. By using a Zn/Mg mixture as a reductant, the resulted nanoporous graphene exhibits highly desirable properties: high specific surface area of 1900 m2/g, a great conductivity of 1050 S/m and a tap density of 0.63 g/cm3, comparable to activated carbon. The nanoporous graphene contains a fine mesoporous structure constructed by curved few-layer graphene nanosheets. The unique property ensemble enables one of the best high-rate performances reported for electrochemical capacitors: a specific capacitance of ~170F/g obtained at 2000 mV/s and 40 F/g at a frequency of 120 Hz. This simple fabricating strategy conceptually provides opportunities for materials scientists to design and prepare novel carbon materials with metallothermic reactions. Keywords: Electrochemical capacitors, CO₂ reduction, Magnesiothermic reduction, Nanoporous graphene
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